Re: Gas Leak

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Posted by Tim Daley(MI) on September 25, 2019 at 17:49:25 [URL] [DELETE] :

In Reply to: Gas Leak posted by Frank (WNY) on September 25, 2019 at 13:04:34:

The main causes of fuel leaks are #1, #2, and #3 sediment bulb valve stem. The only working part in the system, it will wear out the seal on it and leak. It is OEM Ford part number APN-9194 and costs $6-$8 at reputable dealers like just8Ns.com. If you pay anymore than that then they are ripping you off. #6 failure is from worn, cross threaded, or wrong fuel line fittings at sediment bulb inlet and/or at brass elbow carb inlet, SEE LINK for new OEM exact fuel line. FITTINGS ARE SPECIAL UNS 7/16-24 USED ON BRAKE AND HYDRAULIC LINES. Using plastic, copper, nylon, or rubber FUEL LINES is NOT recommended. Leak #4 comes when fellas leave the fuel valve knob on when they shut down the tractor. If seal is getting bad, it will leak if left ON and/or when opened. Leak #5 can be caused by backed up vacuum in stem if gas tank vent is plugged, can be caused for same reason if brass fuel line inlet at carb is plugged at the filter.

#1. OEM FORD APN-9194 SEDIMENT BULB & VALVE STEM VIEW DIAGRAM:

#2. APN-9194 SEDIMENT BULB FUEL VALVE STEM:

#3. OEM SEDIMENT BULB ASSEMBLY & VALVE STEM:

#4. OPEN VALVE STEM 2 FULL TURNS FOR MAIN OPEN POSITION, FULL FOR RESERVE POSITION, OFF POSTION WHEN NOT IN USE:

#5. GAS TANK VENT PLUGGED OR FUEL INLET ELBOW SCREEN PLUGGED, MAY CAUSE NO-FLOW:



#6. FUEL LINE; SEE LINK BELOW:


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